// based on go module
(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
	mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
	define(["../../lib/codemirror"], mod);
  else // Plain browser env
	mod(CodeMirror);
})(function(CodeMirror) {
"use strict";

CodeMirror.defineMode("solidity", function(config) {
  var indentUnit = config.indentUnit;

  var types = solTypes();
  var stdContract = solStdContract();
  var keywords = solKeywords();
  var atoms = solMisc();
  var builtins = solBuiltIn();

  var isOperatorChar = /[+\-*&^%:=<>!|\/]/;

  var curPunc;

  function tokenBase(stream, state) {
	var ch = stream.next();
	if (ch == '"' || ch == "'" || ch == "`") {
	  state.tokenize = tokenString(ch);
	  return state.tokenize(stream, state);
	}
	if (/[\d\.]/.test(ch)) {
	  if (ch == ".") {
		stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/);
	  } else if (ch == "0") {
		stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);
	  } else {
		stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/);
	  }
	  return "number";
	}
	if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
	  curPunc = ch;
	  return null;
	}
	if (ch == "/") {
	  if (stream.eat("*")) {
		state.tokenize = tokenComment;
		return tokenComment(stream, state);
	  }
	  if (stream.eat("/")) {
		stream.skipToEnd();
		return "comment";
	  }
	}
	if (isOperatorChar.test(ch)) {
	  stream.eatWhile(isOperatorChar);
	  return "operator";
	}
	stream.eatWhile(/[\w\$_\xa1-\uffff]/);
	var cur = stream.current();
	if (keywords.propertyIsEnumerable(cur)) {
	  if (cur == "case" || cur == "default") curPunc = "case";
	  return "keyword";
	}
	if (atoms.propertyIsEnumerable(cur)) return "atom";
	if (types.propertyIsEnumerable(cur)) return "variable-2";
	if (stdContract.propertyIsEnumerable(cur)) return "variable-3";
	if (builtins.propertyIsEnumerable(cur)) return "builtin";
	return "variable";
  }

  function tokenString(quote) {
	return function(stream, state) {
	  var escaped = false, next, end = false;
	  while ((next = stream.next()) != null) {
		if (next == quote && !escaped) {end = true; break;}
		escaped = !escaped && next == "\\";
	  }
	  if (end || !(escaped || quote == "`"))
		state.tokenize = tokenBase;
	  return "string";
	};
  }

  function tokenComment(stream, state) {
	var maybeEnd = false, ch;
	while (ch = stream.next()) {
	  if (ch == "/" && maybeEnd) {
		state.tokenize = tokenBase;
		break;
	  }
	  maybeEnd = (ch == "*");
	}
	return "comment";
  }

  function Context(indented, column, type, align, prev) {
	this.indented = indented;
	this.column = column;
	this.type = type;
	this.align = align;
	this.prev = prev;
  }
  function pushContext(state, col, type) {
	return state.context = new Context(state.indented, col, type, null, state.context);
  }
  function popContext(state) {
	var t = state.context.type;
	if (t == ")" || t == "]" || t == "}")
	  state.indented = state.context.indented;
	return state.context = state.context.prev;
  }

  // Interface

  return {
	startState: function(basecolumn) {
	  return {
		tokenize: null,
		context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
		indented: 0,
		startOfLine: true
	  };
	},

	token: function(stream, state) {
	  var ctx = state.context;
	  if (stream.sol()) {
		if (ctx.align == null) ctx.align = false;
		state.indented = stream.indentation();
		state.startOfLine = true;
		if (ctx.type == "case") ctx.type = "}";
	  }
	  if (stream.eatSpace()) return null;
	  curPunc = null;
	  var style = (state.tokenize || tokenBase)(stream, state);
	  if (style == "comment") return style;
	  if (ctx.align == null) ctx.align = true;

	  if (curPunc == "{") pushContext(state, stream.column(), "}");
	  else if (curPunc == "[") pushContext(state, stream.column(), "]");
	  else if (curPunc == "(") pushContext(state, stream.column(), ")");
	  else if (curPunc == "case") ctx.type = "case";
	  else if (curPunc == "}" && ctx.type == "}") ctx = popContext(state);
	  else if (curPunc == ctx.type) popContext(state);
	  state.startOfLine = false;
	  return style;
	},

	indent: function(state, textAfter) {
	  if (state.tokenize != tokenBase && state.tokenize != null) return 0;
	  var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
	  if (ctx.type == "case" && /^(?:case|default)\b/.test(textAfter)) {
		state.context.type = "}";
		return ctx.indented;
	  }
	  var closing = firstChar == ctx.type;
	  if (ctx.align) return ctx.column + (closing ? 0 : 1);
	  else return ctx.indented + (closing ? 0 : indentUnit);
	},

	electricChars: "{}):",
	fold: "brace",
	blockCommentStart: "/*",
	blockCommentEnd: "*/",
	lineComment: "//"
  };
});

CodeMirror.defineMIME("text/x-solidity", "solidity");

});
